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A highly birefringent optical device has a different index of refraction along each orthogonal axis.  In crystals these can be referred to as ordinary and extraordinary axes, though in fiber optics it is more common to describe them as the fast axis and slow axis.  HiBi fibers will maintain the polarization state of light as the large difference in refractive index between axes act to substantially reduce the probability of cross coupling.

For more information, please request our technical note 'Highly Birefringent Polarising Maintaining Fiber for Fiber Optical Gyroscopes (FOGs)'.

Highly Birefringent Polarising Maintaining Fiber for Fiber Optical Gyroscopes (FOGs)

Related Products: Dual Clad Erbium/Ytterbium Doped Fiber, Erbium Doped Fiber IsoGain™, Erbium Doped Fiber MetroGain™, PM Erbium Doped Fiber, PM Gyro Fiber, Polyimide Coated PM Fiber, Pure Silica Core PM Fiber, SM Nd Doped Fiber, Spun HiBi Fiber, Standard PM Fiber, Telecoms PM Fiber, Zing™ Polarizing Fiber

Related Terms: Cross-Coupling, Extinction Ratio, Polarization Maintaining (PM) Fiber, Polarization Mode